The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Dec. 17, 2021
Sap SE, Walldorf, DE;
Dirk Thomsen, Heidelberg, DE;
SAP SE, Walldorf, DE;
Abstract
Computer-readable media, methods, and systems are disclosed for improving performance when dropping database snapshots by linking converter streams associated with adjacent snapshots in a database system. A request is received to drop a snapshot. The database system iterates a first converter tree associated with a first converter stream to identify a first physical page number to be loaded. A physical page corresponding to the first physical page number is loaded. The database system iterates a second converter tree associated with a second converter stream to identify a second physical page number to be loaded. The second physical page number is queried from an iterator associated with the first converter tree. Responsive to determining that the physical page associated with the second physical page number is not present in main memory, the in-memory database system loads from disk, the physical page associated with the second physical page number.